Why developers split demolition and excavation in the first place
The historical reason for splitting demolition and excavation across two contracts is risk allocation: developers used to want a clear handoff between “the site is empty” and “the site is dug.” It simplified bidding, simplified insurance, and let the GC pick specialists for each phase.
That model worked in 2010. In 2026, with land-acquisition costs in Western Canadian urban infill markets running $300-$800 per square foot and project timelines compressed by interest-rate exposure, the cost of a 3-4 week gap between contractors often exceeds the bid-pricing benefit of splitting them.
The four cost lines that compress when you bundle
1. Mobilization is half-priced
Excavators, low-bed trucks, dust suppression rigs, and labour crews all get one mobilization charge instead of two. For a typical Western Canada multi-family infill project, this is $4,000-$12,000 of duplicated mobilization that disappears.
2. The lay-down window collapses
Under split contracts, the demolition team strips and leaves the slab plus footings. The excavation team mobilizes 1-3 weeks later. Both crews need somewhere to stage equipment and materials during their windows, doubling the lay-down area need and rental footprint.
A bundled contract uses one continuous staging plan and saves 2-3 weeks of fence and signage rental on tight urban lots.
3. Disposal trips merge
Demolition debris (drywall, finishes, framing, fixtures) and excavation spoils (soil, concrete, rock) go to different facilities. But a bundled contract lets the same trucks run loop routes — drop demolition debris at the landfill, pick up clean fill on the way back, then move spoils to the next staging area. The fleet utilization rate climbs from 55-60% to 75-85%.
4. Permitting and notifications collapse to one cycle
Municipal demolition permits, excavation permits, traffic management plans, and neighbour notifications all run on the same calendar in a bundle. Under split contracts, you do this twice with a 2-3 week mid-project gap that triggers permit re-validation in some BC and AB jurisdictions.
When NOT to bundle
There are three scenarios where splitting still makes sense:
- Asbestos or unknown contamination: If the structure pre-dates 1990 and pre-demolition hazmat surveys haven’t been completed, bundling forces the excavation pricing into the bid before contamination scope is known. Split the contracts and price excavation after abatement is complete.
- Significantly different scope sizes: A small wood-frame demolition followed by a massive multi-level basement excavation deserves specialist excavation bidders. A bundled bidder may not have the heavy fleet for the excavation phase.
- Phased site activation: Some master-planned developments demolish in phase 1 and excavate phases 2-3 months or years later. Bundling doesn’t apply.
What a bundled contract should specify
If you decide to bundle, the contract structure that works:
- Single milestone schedule with demolition complete, hazmat clearance, and excavation start specified by date
- One performance bond covering both phases — usually 5-10% of bundled value
- One CCDC-2 (or AB-specific equivalent) with both scopes attached as schedules A and B
- Diversion targets specified by phase (60-80% demolition; 90%+ on clean spoils)
- One safety plan covering both phases — bundled contractors should be able to walk you through how their crews transition from teardown to dig without re-inducting
What to expect on price
Honest pricing notes for Western Canada developers in 2026:
- Bundled bids run 8-15% below the sum of two split bids on typical urban infill projects under 1 acre
- On projects over 3 acres, the bundled discount narrows to 3-8% — the cost basis of large excavation is dominated by truck cycles and disposal tipping fees, not coordination overhead
- On rural or wildland projects, bundling rarely beats split contracts because excavation is a more specialized capability
Vetting a bundled contractor
Three questions worth asking any contractor bidding both scopes:
- Show me three past projects where you executed both phases under one contract — with named developer references for each
- What’s your owned-equipment list versus your rental-dependency list? (Owned-equipment shops handle the phase transition without delay; rental shops have a 2-3 day gap re-mobilizing rented excavators)
- Who’s the named site superintendent and does the same person run both phases? (A handoff between demolition and excavation supervisors is where coordination failures usually happen)
Deconstructors holds owned demolition and excavation fleet and routinely executes bundled contracts on residential and commercial development sites across Vancouver Island, the Lower Mainland, the Calgary area, and into Saskatchewan. For a free scoping conversation on a bundled bid, contact the office at (250) 419-5488 or estimating@deconstructors.ca.
